Convolutional Neural Networks for Challenges in Automated Nuclide Identification

Autor:	Anthony N. Turner, Carl Wheldon, Tzany Kokalova Wheldon, Mark R. Gilbert, Lee W. Packer, Jonathan Burns, Martin Freer
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	radio-isotope identification convolutional neural network gamma spectrometry simulations GEANT nuclear applications Chemical technology TP1-1185
Zdroj:	Sensors, Vol 21, Iss 15, p 5238 (2021)
Druh dokumentu:	article
ISSN:	1424-8220
DOI:	10.3390/s21155238
Popis:	Improvements in Radio-Isotope IDentification (RIID) algorithms have seen a resurgence in interest with the increased accessibility of machine learning models. Convolutional Neural Network (CNN)-based models have been developed to identify arbitrary mixtures of unstable nuclides from gamma spectra. In service of this, methods for the simulation and pre-processing of training data were also developed. The implementation of 1D multi-class, multi-label CNNs demonstrated good generalisation to real spectra with poor statistics and significant gain shifts. It is also shown that even basic CNN architectures prove reliable for RIID under the challenging conditions of heavy shielding and close source geometries, and may be extended to generalised solutions for pragmatic RIID.
Databáze:	Directory of Open Access Journals
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